to Use When Working with an Oxidized Milk Problem
Check entire pipeline system for any part that is not made of stainless
steel, rubber, or plastic.
II. Wash up
and pipeline fittings
jar and probes
pump and attached valves, etc.
Tank - agitator paddle and rod, milk valve
and sink drains and plugs
lines from sink to pipeline
- No part
that is not stainless, plastic, or rubber should be washed in sink
- To be
safe in washing, use only rubber, plastic, or wood brushes
if copper in any form is being added to any feed going to the milking
herd, dry cows, or heifers 1. If copper is being added for molybdenum
control the therapeutic dose is 1 gram of CuSO4 per mature cow per
day during the trouble period this dosage can be cut to /2 gram/cow/day.
If you need to double check the molybdenum problem run laboratory
analysis on the herd's legume feed for Cu, Mo, and SO4-S (inorganic
sulfates). (If the level of molybdenum is 50% or more than the Cu
level and the level of SO4-S is over 2,000 PPM you have a molybdenum
problem.) Regardless of the degree of molybdenosis, 1 gram of Cu SO4/cow
/day is an adequate dose.
- No molybdenum
problem, ask that no copper be added to the feed. A combination of
most natural, California grown feeds contain adequate amounts of dietary
mineral salt blocks are most likely to be all right
of Copper contamination in pipeline
much of the hay grown in California contains a copper level of from
3 ppm to 15 ppm, it may be necessary to run levels of Copper on hay
being fed while herd is oxidized. Data provided could be then checked
against Copper levels in hay when the same herd is no longer oxidized.
of Cu levels in pipeline
copper levels on bulk tank milk from AM and PM milkings
- At next
milking, sample bulk tank after the first 3 or 4 cows have been milked.
Drain bulk tank, acid wash and rinse.
bulk tank again after end of milking. Cu levels run on both samples
should give levels of Cu picked up by milk from pipeline system
VII. If none
of the above steps reduce oxidized flavor it will then be necessary to
flavor the individual cows.
hot and cold H2O for Cu
wash sink with acid and rinse. Fill sink up with acid solution and
take sample for copper analysis
pipeline system thoroughly (15 minutes) with acid solution
sample of wash solution for Cu analysis
in copper levels would determine degree of Cu contamination in pipeline
It is also
recommended that the Dairy Farm Advisor not only know and work with the
processor personnel, but work within a specific company's policy procedures.
herd, at least sample all 1st and 2nd lactation animals
- If a
large percentage of the cows are found too be producing oxidized milk
(intensity above 2) feed Vitamin E to the herd at 2,000 I.U./cow/day
for 1 month. If flavor hasdisappeared by then, reduce level of E at
rate of 400 I.U./cow/day each week.It may be possible or practical
to feed E to only those cows found to be producing oxidized milk.